Windows Phone OS is one operating system which has managed to define itself separately from the traditional approach that phone operating system followed. Microsoft did it and is now replicating the metro user interface in every other upcoming product of theirs. You can also see the same user interface elements in upcoming Windows Office 2013 and Windows 8.
Here, we are showcasing few designs made by Yanko Design which cool concepts. The phones that are designed definitely looks cool for sure, and they aren’t very difficult to manufacture unlike few futuristic ones. The icons coincide with the tiles that are created on the cover. The only one thing is the location of the Windows Phone button on the phone.